Taxes when you retire or turn 65 years old – Canada.ca

You can ask the Canada Revenue Agency (CRA) to tax the parts for previous years as if you received them in those years. Other kinds of income: Line 13000 – Other income: Other kinds of income … If that is the case, a recovery tax will be deducted by Service Canada from your OAS benefits.

https://www.canada.ca/en/revenue-agency/services/tax/individuals/segments/changes-your-taxes-when-you-retire-turn-65-years-old.html